Pavel Banya's Grand Resort has indoor mineral pools around 35 to 36°C and an aquatonic pool up to 38°C, drive-up access near the Rose Valley. Day use varies.

Velingrad's Spa Hotel Elbrus runs a mineral-water aqua park with slides, jacuzzis and a 25 m pool, open 09:00 to 19:00 with limited day entry. Call ahead.

Sofia's Vazrazhdane Complex uses mineral water in a 25 m indoor pool (28°C), plus seasonal outdoor pools and slides, easy metro access. Caps required in lanes.

Mineralni Bani village (near Haskovo) has indoor and outdoor mineral-water pools at the Bulgaria Pool complex. Drive-up access, simple facilities, plan basics.

Ognyanovo’s Valentina Castle has several mineral pools with published temperatures (about 30–36°C by season) plus kids’ pools, in a quiet valley setting.

Banya village near Bansko, Regnum Banya Thermal has outdoor thermal pools and spa zones in a managed setting. Easy access by car, best for longer soaks.

Dolna Banya’s Complex Europe offers a summer 25 m outdoor mineral pool plus spa services, with easy road access from Sofia and Borovets. Expect a resort day.

Ticketed mineral-water soak at Aquae Calidae (Vetren, Burgas), with a warm pool listed at 36°C, plus cold pool and steam rooms. Plan short sessions.

Black Sea mineral pools at Therma Eco Village in Kranevo, with indoor and outdoor options, spa areas, and easy drive-up access from Varna.

Near Karlovo, Royal Bath's year-round outdoor mineral pool and indoor kids' section suit a relaxed day visit or overnight, with easy parking too.

Varshets mineral-water spa hotel with indoor and outdoor pools, sauna and steam areas, and a calm small-town base in the Balkan foothills for quiet weekends.

Sandanski park-side hotel pools with mineral water, including an outdoor thermal pool listed at 38°C, lifeguards on duty, and day-visitor entry available.

Pulse Therme Banya is a large mineral-water spa complex near Bansko, with many pools and thermal rooms, and a strict 14+ entry rule for quieter soaking.

Dobrinishte's Alpha Spa & Pool offers several mineral-water pools, showers, parking, and a kids' play area, an easy soak after Bansko hikes year-round.

Devin's mineral-water aquapark with indoor/outdoor pools (listed 26 to 36°C), slides, lockers, and drive-up access in the Rhodopes, handy on rainy days.

AQUAHOUSE Thermal & Beach near Varna has 14 mineral-water pools (about 30–42°C), day tickets, lockers and easy access by car or bus. Open 08:30–20:30.

Large Hisarya mineral pool and camping complex with indoor and outdoor pools, kids areas, and day tickets, easy access from Plovdiv, plus onsite food.

Rupite’s volcanic plain near Petrich has 74°C mineral springs, a church and easy paths. Soaking is informal, water can be dangerously hot. Plan shade and water.

All-inclusive thermal spa hotel in Banya near Bansko, with mineral-water pools fed from local springs, plus a big sauna zone and family facilities.

Velingrad’s central mineral beach is a straightforward public pool stop, with seasonal outdoor swimming, showers, and a cafe, no hike, good for families.

Sapareva Banya mineral pool complex with outdoor basins and saunas, commonly 09:00 to 19:00 daily, easy stop after Rila hikes, bring sandals and a towel.

Drive-up mineral bath complex in Bankya near Sofia, with warm pools, sauna options, lockers, and changing rooms, easy parking, good for a quick soak.